SolidState Solidity

SolidState is an upgradeable-first Solidity smart contract development library.

It consists of the following packages:

package	description	📕
@solidstate/abi	contract ABIs	📖
@solidstate/contracts	core contracts	📖
@solidstate/library	functions for interacting with and validating contracts	📖
@solidstate/spec	portable tests which may be run against third-party implementations of core contracts	📖

Contracts

All contracts are designed to either be deployed through the standard constructor method, or referenced by a proxy. To this end, the diamond storage pattern is employed exclusively.

Spec

Where possible, automated tests are designed to be imported by repositories which make use of the SolidState contracts and run against any derived contracts. This is to help prevent unintended changes to the base contract behavior.

For example, consider a custom ERC20Base implementation:

import '@solidstate/contracts/token/ERC20/base/ERC20Base.sol';

contract CustomToken is ERC20Base {
  // custom code...
}

Rather than rewrite the ERC20Base tests or assume that all core behavior remains untouched, one can import the included tests and run them against the custom implementation:

describe('CustomToken', () => {
  let instance;

  beforeEach(async () => {
    const factory = await ethers.getContractFactory('CustomToken');
    instance = await factory.deploy();
    await instance.deployed();
  });

  describeBehaviorOfERC20Base(
    {
      deploy: () => instance,
    },
    [],
  );

  // custom tests...
});

If parts of the base implementation are changed intentionally, tests can be selectively skipped:

describeBehaviorOfERC20Base(
  {
    deploy: () => instance,
  },
  ['#balanceOf'],
);

describe('#balanceOf', () => {
  // custom tests
});

Development

Install dependencies via Yarn:

yarn install

Setup Husky to format code on commit:

yarn prepare

Compile contracts via Hardhat:

yarn run hardhat compile

Automatically upgrade dependencies with yarn-up:

yarn upgrade-dependencies

Testing

Test contracts with Hardhat and generate gas report using hardhat-gas-reporter:

yarn run hardhat test

Generate a code coverage report using solidity-coverage:

yarn run hardhat coverage

Publication

Publish packages via Lerna:

yarn lerna-publish